Boiler attachment



March 27; 1928. 1,664,230

J. H. STOCKHOLDER BOILER ATTACHMENT Filed March 25. 1926 Patented Mar. 27,1928. H v I o-NirE-n STATS Y Application filed March 23, 1926. Serial No. 96,759. i

The invention relates to boiler a-ttachwardly into the boiler, through the upper mcnts, and has for its object to vprovide a side thereof at 3 is a pipe 4, which pipe exdevice of this character whereby, when the tends below the water level 5 within the 55 water level within the boiler drops below boiler to a predetermined danger line 6, and

5 a danger level, live steam from the boiler when the water drops below the danger line will be allowed to escape from the boiler and 6 the live steam within the boiler is allowed be discharged into the fire box below the to pass through the pipe 4, howeverat other boiler thereby extinguishing the fire, and obtimes the water forms a seal for the lower 60 viating danger of explosion or damage to end of the pipe 4 and prevents the passage the boiler. of steam into the same. Pipe 4 above the A further object is to place a fusible memboiler is provided with a conventional form her in a bushing, which bushing is threaded Of valve 7 which is normally open, and seinto a branch of a T fitting and to proporcuredto the valve 7 is a T 8 having its lower 65 ti th it b h f th T fitti g branch 9 provided with a removable bushing whereby the bushing may be removed there- 10, and in which bushing is disposed a fusfrom, thereby allowing the fusible plug and ihle Pl g 1 Which plug Will fuse When the bushing to be easily removed and rethclive steamengflg s the Same, thereby alplaced as desired and to provide the branch lowing the steam to'pass through the bush- 70 of the T opposite the bushing carrying 111g 10 to the chamber 12 of the T and-thence b h ith removable plug, whereby acthrough the pipe 13 which is connected to 3355 may be had to the bushing, tilt, branch 14: Of the T, and Which pipe ex- A further object is to provide a valve intends downwardly and terminates in a horiterposed between the fusible plug and the zontally dlsposed portion 15 which has its 75 boiler, which may be closed when placing discharge end disposed within the fire box 2.

, a new fuse therein after a fusing operation. It W l be Seen h the live steam from the 1th the above and otherv objects in iew boiler. Will be discharged into tllB fire bOX, v the invention resides in the combination and q ently he fire W111 be extinguished, all

arran 'e-ment of arts as hereinafter set of which is a relativel uick o eration.

a so

forth, shown in the drawing, described and e fir man can then remove the plug 16 3o claimed, it being understood that changes in from the upper branch 17 of the T and rethe precise embodiment of the invention may move the h g 1 fIOm Which. the 1 8 be made within the scope of what is claimed Pl g 11 has be n fused from its position in without departing from the spirit of the in-- the hlilllCh 9 and easily and q y replace 85 Vention the same with another bushing having a fuse V I th d i plug therein, and which operation may be Figure 1 is a side elevation of a conveneasily accomplished with a conventional tional form of boiler, showing the same par form of socket wrench. tially in vertical longitudinal section and the From the above it will be seen that a steam 9O device applied thereto.' exhausting apparatus is provided'for boilers 40 Figure 2 is a vertical longitudinal sectionwhereby danger of explosion of the boiler al view through the T. is obviated, the fusible plug can be quickly Referring to the drawing, the numeral 1 replaced with another plug and at the same designates a conventional form of boiler and time the fire is extinguished, all of which op- 95 2 a fire box beneath the same. In boilers eration takes place within a relatively short as at present constructed fuse plugs are used, time, thereby obviating the necessity of plachowever when the regulation fuseplug gives ing the boiler out of commission and allowway the boiler has to cool off and'a new plug ing the same to cool, which is the present is then inserted from the inside of the boiler, practice. I consequently the boiler is out of commission The invention having been set forth what for at least twenty four hours, and to obis claimed as new and useful is I viate the above difiiculty the present device The combination with a pipe extending is primarily designed. Extending downinto a boiler to a position below the water level thereof, a fire box, said pipe having other branch, a fusible plug carried by said one of its ends extending into the fire box, bushing and a removable plug carried by a valve carried by said pipe adjacent the the branch of the T fitting opposite the boiler, a T fitting carried by said valve and bushing-carrying branch.

5 pipe and havlng oppositely disposed In testimony whereof I hereunto affix my 'branches, a bushing threaded into one of signature.

said branches and removable through the JOHN H. STOGKHQLDER. 

